CN208993805U - Clamping system for crawler track - Google Patents
Clamping system for crawler track Download PDFInfo
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- CN208993805U CN208993805U CN201821239148.0U CN201821239148U CN208993805U CN 208993805 U CN208993805 U CN 208993805U CN 201821239148 U CN201821239148 U CN 201821239148U CN 208993805 U CN208993805 U CN 208993805U
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- Prior art keywords
- clamping system
- end plate
- plate
- spring element
- anchor plate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/30—Track-tensioning means
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Body Structure For Vehicles (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Earth Drilling (AREA)
- Springs (AREA)
Abstract
This application involves the clamping systems for crawler track.Clamping system includes: idle pulley；It is connected to the yoke of the idle pulley；The one group of track drive rail extended around at least part of the idle pulley；The mobile base supported by the track drive rail, the mobile base limit frame；It is attached to the preloading actuating element of the mobile base；And it is configured to the spring element preloaded by the preloading actuating element.
Description
Cross reference to related applications
This application claims the priority for the 62/540th, No. 191 U.S. Provisional Patent Application submitted for 2nd in August in 2017,
Entire contents are incorporated by reference the application.
Technical field
The present invention relates to crawler belt and for the system of tensioned tracks.
Background technique
Crawler belt usually becomes loosening and sagging during undergoing its service life.Clamping system helps to reduce loosening and pine
It hangs down.
Summary of the invention
According to a kind of construction, a kind of clamping system includes: idle pulley；It is connected to the yoke of the idle pulley；Around the idle pulley
One group of driving crawler belt that at least part extends；The movement supported by the track drive rail (crawler drive track)
Pedestal, the mobile base include frame；It is connected to the preloading actuating element of the frame；And multilayer spring element,
It is configured to be preloaded by the preloading actuating element, and is configured to be pressed against the yoke (yoke) to be tensioned the driving shoe
Band.
It is constructed according to another kind, a kind of clamping system for crawler belt includes: idle pulley；Mobile base including frame；Even
It is connected to the preloading actuating element of the frame；And the spring element preloaded by the preloading actuating element.The bullet
Spring element has the first anchor plate and the second anchor plate.Stopping element is connected to the first anchor plate of the spring element and from institute
State the extension of the first anchor plate.
It is constructed according to another kind, a kind of be tensioned by the method for the crawler belt of the frame support of excavating machinery includes: to use to preload
Actuating element stretches and preloads the crawler belt；At least one gasket is placed between spring element and the wall of the frame；
And deactivate the preloading actuating element.
By considering that the detailed description and the accompanying drawings, other aspects of the present invention will become obvious.
Detailed description of the invention
Fig. 1 is the side view that power excavates forklift.
Fig. 2 is the partial side view that the power of Fig. 1 excavates the mobile base of forklift, and it illustrates according to a kind of structure
Clamping system.
Fig. 3 is the enlarged drawing of the clamping system of Fig. 2.
Before any embodiments of the invention are explained in detail, it should be appreciated that application of the invention is not limited to following
The details of the construction shown described in description or in the following figures and the arrangement of component.The present invention can have other implementations
Example and can be practiced or carried out in various ways.Also, it is understood that wording used herein and term are for description
Purpose is not considered as restrictive.
Specific embodiment
Fig. 1 shows power and excavates forklift 10.Forklift 10 includes mobile base 15, track drive rail 20, turntable 25, rotation
Turn frame 30, support arm 35, the lower end 40 (also referred to as support arm foot) of support arm 35, support arm 35 upper end 45 (also referred to as branch arm head), by
It draws cable 50, derrick tower tension member 55, derrick tower compression member 60, be rotatably installed on the upper end 45 of support arm 35
Pulley 65, scraper bowl 70, the dipper door 75 for being pivotably connected to scraper bowl 70, ropes 80, capstan winch drum (not shown),
Dipper arm 85, saddle piece 90, acknowledgement of consignment axis 95 and gear unit (also referred to as excavating driving, do not show).Rotational structure 25 allows
Portion's frame 30 is rotated relative to lower base 15.The rotation axis 100 of the restriction forklift 10 of turntable 25.Rotation axis 100 perpendicular to
The plane 105 limited by pedestal 15, and correspond roughly to the gradient of ground or support surface.
Mobile base 15 is supported by track drive rail 20.Mobile base 15 supports turntable 25 and rotating frame 30.Turntable 25
It can be rotated by 360 ° relative to mobile base 15.Support arm 35 is pivotably connected to rotating frame 30 at lower end 40.Support arm
35 are retained and are upward and outward extended relative to rotating frame 30 by tension cable 50, and tension cable 50 anchors to crane
Frame tension member 55 and derrick tower compression member 60.Derrick tower compression member 60 is mounted on rotating frame 30.
Scraper bowl 70 by ropes 80 from support arm 35 hang out come.Ropes 80 are wrapped on pulley 65 and are mentioning
Scraper bowl 70 is attached at ring 110.Ropes 80 anchor to the capstan winch drum (not shown) of rotating frame 30.Capstan winch drum is by extremely
Few motor (not shown) driving, which includes gear unit (not shown).When the rotation of capstan winch drum, hoisting rope
Rope 80 is released to reduce scraper bowl 70, or is drawn into increase scraper bowl 70.Dipper arm 85 is also connected to scraper bowl 70.Dipper arm 85 can
It is slidingly supported in saddle piece 90, and saddle piece 90 is pivotally mounted to support arm 35 at acknowledgement of consignment axis 95.Dipper arm 85
Including rack gear and tooth construction on it, the driving pinion (not shown) being mounted in saddle piece 90 is engaged.Drive small tooth
Wheel is driven by motor and gear unit (not shown), so that dipper arm 85 is stretched out or retracted relative to saddle piece 90.
Power supply (not shown) is installed to rotating frame 30, to supply power to the promotion motor for driving promotion drum (not
Show), for driving excavate the one or more of transmission device and excavate motor (not shown) and for the one of rotating table 25
A or multiple wobbling motor (not shown).It excavates, promoted and each of wobbling motor is by its own motor
Controller driving, or optionally according to the control signal driving from controller (not shown).
Fig. 2 shows mobile base 115, can be used for replacing mobile base 15, or with other machines (e.g., including it is mixed
Close the excavation forklift including excavating forklift with cable type, bull-dozer, mining excavator, crane etc.) it is used together.Mobile base
115 include frame 120, idle pulley 125 (for example, gear), driving gear 130 (schematically showing) and are connected to driving gear
130 driver 135 (schematically showing).Drive crawler belt (not shown) along frame 120 bottom 140, surround idle pulley 125
At least part, along frame top 145 and around driving gear 130 at least part extend.Driver 135 drives
Dynamic driving gear 130 rotates, this keeps crawler track mobile around mobile base 115.
Referring to figs. 2 and 3, mobile base 115 further includes clamping system 150, to adjust the position of idle pulley 125 and in crawler belt
Required tension is kept in driving rail.Clamping system 150 includes spring element 155, one or more gasket 160 (Fig. 2), pre-
Load actuating element 165 and yoke 170.Idle pulley 125 is arrived in the connection of yoke 170 (for example, fixed).
With reference to Fig. 3, in the construction illustrated, spring element 155 is elastomeric spring unit, has the first anchor plate
175 and it is connected to the first end plate 180 of the first anchor plate 175.Spring element 155 further includes the second anchor plate 185 and is connected to
Second end plate 190 of the second anchor plate 185.Spring element 155 further include setting first end plate 180 and the second end plate 190 it
Between intermediate plate 195, and be arranged between (being clipped in) each intermediate plate 195 and first end plate 180 and the second end plate 190
Multilayer elastomeric material layer 200.In the construction illustrated, spring element 155 includes in ten layers of layer of elastomer material 200 and nine
Between plate 195.The layer of elastomer material 200 and intermediate plate 195 that other structures include different number are (for example, more or less than ten layers
Layer of elastomer material 200 and be more or less than nine intermediate plates 195).In addition, although layer of elastomer material 200, intermediate plate
195, the first anchor plate 175, first end plate 180, the second anchor plate 185 and the second end plate 190 are substantially shown as tool in Fig. 3
There are specific shape and/or a size, other structures include various other shape and size in addition to diagram (for example, more round
Shape, size etc.).Layer of elastomer material 200 and the size and number of intermediate plate 195 may be designed to specific application and optimize
Spring rate (rigidity) and required flexure.For example, can choose each layer in layer of elastomer material 200 and intermediate plate 195
The number of plies of length, width and thickness and layer of elastomer material 200 and intermediate plate 195, to realize specific spring rate.
With continued reference to Fig. 3, elastomeric layer 200 respectively at least partly by elastomeric material (for example, thermoplastic,
Thermoplastic elastomer (TPE), material based on urethane (such as polyurethane), and/or the material based on rubber) it is formed.Intermediate plate 195,
One anchor plate 175, first end plate 180, the second anchor plate 185 and the second end plate 190 respectively at least partly by metal (for example,
Steel) it is formed.Other constructions include for elastomeric layer 200, intermediate plate 195, the first anchor plate 175, first end plate 180, the
The different materials or combination of materials of two anchor plates 185 and the second end plate 190.In some constructions, 200 He of elastomeric layer is selected
Quantity, size and shape and the their own making material of intermediate plate 195 are strained with the spring of Optimal Spring element 155
Rate (rigidity).
With reference to Fig. 3, in the construction illustrated, the first anchor plate 175 is connected to first end plate 180 by fastener 205,
But in other structures, the first anchor plate 175 and first end plate 180 are formed integrally as single-piece or are connected to other structures
Together.Although it is not shown, but in some structures, the second end plate 190 is connected to the second anchor plate 185 also by fastener, with
Second anchor plate 185 is formed integrally as single-piece, or is connect with other structures with the second anchor plate 185.Elastomeric layer 200
One or more intermediate plates are connected to each by adhesive, fastener or by other structures or method (for example, molding)
195.Other structures include the plate and elastomeric layer of various other quantity and arrangement, and by various other modes by plate and
Elastomeric layer links together in spring element 155.
Referring to figs. 2 and 3, the frame 120 that actuating element 165 is connected to mobile base 115 is preloaded.In some structures
In, at least part (for example, with fastener) for preloading actuating element 165 is fixed to frame 120.In the structure shown in,
Preloading actuating element 165 is the hydraulic cylinder with plug portion (not shown), and plug portion is mobile towards the first anchor plate 175
And it is pressed against the first anchor plate 175.Other structures include different types of preloading actuating element 165 (for example, pneumatic linear actuator, electronic
Linear actuators etc.).
With continued reference to Fig. 2 Fig. 3, during operation, preloads actuating element 165 and be used primarily for stretching and preloading crawler belt
Rail.In order to preload crawler track (crawler track), plug portion contacts and is pressed against the first anchor plate 175, by spring element
Push right side to, as shown in Figure 2.The movement forces spring element 155 against yoke 170, this forces idle pulley 125 to the right, to be tensioned
The crawler belt wound at least partially surrounding idle pulley 125.As shown in Figures 2 and 3, yoke 170 can have various shape and size.For example, yoke
170 can have tapered profiles as shown in Figure 2, or the non-tapered profile as shown in Fig. 3 is (for example, square cross section
Beam etc.).As shown in figure 3, in some structures, the second anchor plate 185 includes outburst area 210, outburst area 210 limits groove
215, groove 215 receives one end of yoke 170, so that yoke 170 is cooperated by releasable frictional engagement against the second anchor plate
185.Other constructions include the different modes that the second anchor plate 185 is connected to yoke 170.
As shown in Fig. 2, once crawler belt, which has passed through, preloads the preloading of actuating element 165, one or more gaskets 160
It is placed (for example, manually) between spring element 155 and the wall 220 of frame 120, needed for being maintained at and generated in crawler belt
Tension.Then it deactivates and preloads actuating element 165 (for example, plug portion retraction).Over time, work as track wear
When, increase (for example, manually) additional gasket 160, between spring element 155 and wall 220 to keep required tension.?
In some structures, in order to increase additional gasket 160, preloads actuating element 165 and be activated again, and assist to be pressed against initial
One group of gasket 160 and spring element 155, so as to be insertion additional spacer 160 create space.
With reference to Fig. 3, clamping system 150 further includes stopping element 225.Stopping element 225 is connected to the first anchor plate 175
And extend from the first anchor plate 175.During operation, stopping element 225 prevents spring element 155 from further pressing along axis 230
Contracting.In the construction illustrated, stopping element 225 vertically extends from the first anchor plate 180 along axis 230.In some structures,
Stopping element 225 and the first anchor plate 180 are formed integrally as single-piece.
With reference to Fig. 3, each of intermediate plate 195, elastomeric layer 200, first end plate 180 and the second end plate 190 are equal
Including hole 235, at least part for being sized and shaped for receiving stopping element 225 in hole 235.As shown in figure 3, stop is first
Part 225 extends through via hole 235 and the second anchor plate 190 of direction.Although stopping element 225 and hole 235 lead in the shown embodiment
It is often circular and centrally located, but other embodiments include the shape different for stopping element 225 and hole 235, ruler
Very little and/or position.In some structures, stopping element 225 and/or hole 235 are not provided with.
As shown in figure 3, in some structures, clamping system 150 additionally or alternatively include switch 240 (schematically
Show), whether instruction spring element 155 be compressed to specific length along axis 230 or connect along axis 230
Closely reach specific length.Switch 240 is limit switch or other electronics, magnetism or Hall effect device.In the construction illustrated,
Switch 240 is limit switch, is connected to one end of stopping element 225 and is connected to controller 245.When spring element 155 is pressed
When contracting, the second anchor plate 185 eventually arrives at and contact-making switch 240 (or being detected by switch 240), to activate switch 240 simultaneously
Signal is sent to controller 245.In other structures, switch 240 be connected in mobile base 115 elsewhere (for example, even
It is connected to frame 120).In some structures, controller 245 is connected to driver 135, and if switch 240 is activated, subtracts
The torque and/or give a warning (for example, vision or sound) that small driver 135 applies, are applied to spring element to reduce
Load on part 155.
In some structures, clamping system 150 additionally or alternatively includes sensor or other devices, measures yoke
170 linear position relative to a part of frame 120 (or other fixed structures), to determine spring element 155 in real time
The distance of compression is determined whether reduce torque and/or be given a warning.
Referring to Fig. 3, in some structures, the first anchor plate 175 may include at least one antelabium or other guide structures,
Extend in a part of frame 120, with guide springs element 155 and forces 155 linear movement of spring element.Second anchor plate
185 may also comprise at least one antelabium or guide structure, extend in a part of frame 120 with further guide springs member
Part 155 simultaneously forces 155 linear movement of spring element.
In some structures, clamping system 150,350 as described herein facilitate reduce crawler belt creeper tread and deflecting roller,
The noise of junction point between idle pulley 125 and/or other component and interference.Clamping system 150,350 can at junction and
The friction of reduction is generated in pin connector, especially when changing direction (for example, arriving forward backward).Clamping system 150,350 is also
Can contribute to reduce creeper tread pin/lug load, and can contribute to reduce creeper tread mobile base 115 or other
Protuberance on the bottom of component.Clamping system 150,350 can also be reduced on the top of mobile base 115 or other component
Crawler belt sagging.
Clamping system 150,350 can provide the passive tensioning method of low cost, wherein gasket adjustment process can be used.
Clamping system 150,350 can also contribute to the interval extended between gasket adjusting.
Although above with have tracked power excavate describe under the background that forklift is used together clamping system 150,
350, but clamping system 150,350 can be used in combination with other structures, including excavator (for example, hydraulic), hybrid power
Excavator, bull-dozer and/or small device.
Although the present invention is described in detail by reference to certain preferred embodiments, at described one of the invention
Or there are variations and modifications in the scope and spirit of multiple independent aspects.
Claims (14)
1. a kind of clamping system, which is characterized in that the clamping system includes:
Idle pulley；
It is connected to the yoke of the idle pulley；
The one group of track drive rail extended around at least part of the idle pulley；
The mobile base supported by the track drive rail, the mobile base includes frame；
It is connected to the preloading actuating element of the frame；And
Multilayer spring element is configured to be preloaded by the preloading actuating element, and is configured to be pressed against the yoke and open
The tight track drive rail.
2. clamping system according to claim 1, which is characterized in that the clamping system further includes gasket, the gasket
It is configured to be placed between the spring element and the wall of the frame, to maintain the expectation tension of the track drive rail.
3. clamping system according to claim 1, which is characterized in that the spring element includes sheet-metal layers and elastic material
The bed of material, the elastic material are at least partly made of elastomeric material.
4. clamping system according to claim 1, which is characterized in that the spring element includes the first anchor plate, second
Anchor plate, first end plate and the second end plate.
5. clamping system according to claim 4, which is characterized in that the preloading actuating element includes plug portion,
The plug portion is configured to mobile towards first anchor plate and is pressed against first anchor plate.
6. clamping system according to claim 4, which is characterized in that first anchor plate is connected to the first end
Plate, and second anchor plate is connected to second end plate.
7. clamping system according to claim 4, which is characterized in that in first anchor plate and the second anchor plate extremely
Few one includes guide structure, and the guide structure extends in a part of the frame, and is configured to force the bullet
Spring element linear is mobile.
8. clamping system according to claim 1, which is characterized in that the spring element includes sheet-metal layers and elastic material
The bed of material, the elastic material are at least partly made of elastomeric material, wherein the spring element further include the first anchor plate,
Second anchor plate, first end plate and the second end plate, and the sheet-metal layers and elastomeric layer are arranged in the first end plate
And second between end plate.
9. clamping system according to claim 8, which is characterized in that the clamping system further includes stopping element, described
Stopping element extends through at least one layer at least one of described metal plate and the elastomeric layer.
10. clamping system according to claim 9, which is characterized in that switch is connected to the stopping element, the switch
It is configured to detect the compression of the spring element.
11. a kind of clamping system for crawler track, which is characterized in that the clamping system includes:
Mobile base comprising frame；
It is connected to the preloading actuating element of the frame；
It is configured to the spring element preloaded by the preloading actuating element, the spring element has the first anchor plate and the
Two anchor plates；And
Stopping element is connected to first anchor plate and distally extends from first anchor plate.
12. clamping system according to claim 11, which is characterized in that the clamping system further includes limit switch and control
Device processed, wherein the limit switch and controller are each coupled to the stopping element.
13. clamping system according to claim 11, which is characterized in that the spring element includes first end plate, second
End plate and the intermediate laminae being arranged between the first end plate and the second end plate and elastomeric layer.
14. clamping system according to claim 13, which is characterized in that the intermediate plate, elastomeric layer, first end plate
It include the hole for being configured to receive the stopping element with each of the second end plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762540191P | 2017-08-02 | 2017-08-02 | |
| US62/540,191 | 2017-08-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208993805U true CN208993805U (en) | 2019-06-18 |
Family
ID=65229084
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810871362.6A Active CN109383654B (en) | 2017-08-02 | 2018-08-02 | Passive track tensioning system |
| CN201821239148.0U Active CN208993805U (en) | 2017-08-02 | 2018-08-02 | Clamping system for crawler track |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810871362.6A Active CN109383654B (en) | 2017-08-02 | 2018-08-02 | Passive track tensioning system |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11208165B2 (en) |
| CN (2) | CN109383654B (en) |
| AU (1) | AU2018211285B2 (en) |
| CA (1) | CA3013013A1 (en) |
| CL (1) | CL2018002080A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109383654A (en) * | 2017-08-02 | 2019-02-26 | 久益环球地表采矿公司 | Passive track tensioning system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11667342B2 (en) | 2019-10-03 | 2023-06-06 | Deere & Company | Active track-chain sag management systems for crawler vehicles |
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- 2018-08-01 US US16/052,188 patent/US11208165B2/en active Active
- 2018-08-01 CA CA3013013A patent/CA3013013A1/en active Pending
- 2018-08-02 CN CN201810871362.6A patent/CN109383654B/en active Active
- 2018-08-02 AU AU2018211285A patent/AU2018211285B2/en active Active
- 2018-08-02 CN CN201821239148.0U patent/CN208993805U/en active Active
- 2018-08-02 CL CL2018002080A patent/CL2018002080A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109383654A (en) * | 2017-08-02 | 2019-02-26 | 久益环球地表采矿公司 | Passive track tensioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| US20190039666A1 (en) | 2019-02-07 |
| AU2018211285B2 (en) | 2024-02-15 |
| AU2018211285A1 (en) | 2019-02-21 |
| CA3013013A1 (en) | 2019-02-01 |
| CN109383654A (en) | 2019-02-26 |
| CL2018002080A1 (en) | 2019-03-08 |
| US11208165B2 (en) | 2021-12-28 |
| CN109383654B (en) | 2023-06-20 |
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